Atypical imaging findings of giant ranulas Atypical imaging findings of giant ranulas.A, Axial view contrast-enhanced CT scan shows peripheral enhancement of this infected giant ranula. Atypical imaging findings of giant ranulas.A, Axial view contrast-enhanced CT scan shows peripheral enhancement of this infected giant ranula. Note mild dilation of the submandibular gland duct (arrow) lateral to the sublingual tail in the sublingual space.B and C, Contiguous (B slightly superior to C) axial view contrast-enhanced CT scans of a patient who had undergone seven failed neck operations. Mild septation is present (white arrows). Subsequent resection of the left sublingual gland resulted in complete resolution. Note the smooth, tapered tail extending into the sublingual space (black arrow). The lesion was pathologically proved to be a giant ranula. Reprinted from Harnsberger (17) with permission from the Electronic Medical Education Resource Group. Andre J. Macdonald et al. AJNR Am J Neuroradiol 2003;24:757-761 ©2003 by American Society of Neuroradiology